Need more range but your frame already has a battery? The 20Ah rear rack battery adds 960 watt-hours of backup power that mounts to your rear rack — giving you a dual-battery setup without any frame modifications.

Key Features
- 20Ah / 960Wh rear rack-mounted battery for dual-battery setups
- Mounts to existing rear rack — no frame modifications needed
- Run alongside your in-frame battery to massively extend range
- Compatible with Bakcou bikes that support rear rack mounting
Specifications
| Capacity | 20Ah / 960Wh |
|---|---|
| Voltage | 48V |
| Mount | Rear rack (dual-battery setup) |
Frequently Asked Questions
Can I run this alongside my existing battery?
Yes. The rear rack battery works as a second battery alongside your in-frame battery, effectively doubling your total range.
Which Bakcou bikes does this fit?
It fits Bakcou models with rear rack compatibility: Storm G2, Scout, Mule SD, Flatlander SD, and Kodiak SD.
How does this compare to the 15Ah rear rack battery?
The 20Ah gives you 960Wh vs 720Wh on the 15Ah version — about 33% more range for longer hunts.